[wellpast]

I've worked on teams that emphasize commit logs as a place to keep significant information about the code.

This inevitably coincides with a "minimize change deltas" mentality to development because else the commit history gets confused. Continuous refactoring goes out the window and so does the soundness of your code base.

The code should speak for itself, period. It should be clear and sound before and after each transformation it undergoes. And there should be no limit to what kinds of transformations it undergoes.